CN112125425A - Composite filter element and water purifier - Google Patents
Composite filter element and water purifier Download PDFInfo
- Publication number
- CN112125425A CN112125425A CN202011095685.4A CN202011095685A CN112125425A CN 112125425 A CN112125425 A CN 112125425A CN 202011095685 A CN202011095685 A CN 202011095685A CN 112125425 A CN112125425 A CN 112125425A
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- filter element
- reverse osmosis
- osmosis membrane
- water
- sealing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 247
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 159
- 239000012528 membrane Substances 0.000 claims abstract description 138
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 82
- 238000011045 prefiltration Methods 0.000 claims description 51
- 230000002093 peripheral effect Effects 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a composite filter element and a water purifier, wherein the composite filter element comprises a reverse osmosis membrane filter element, a reverse osmosis membrane central tube and a front filter element assembly, the reverse osmosis membrane filter element is arranged outside the reverse osmosis membrane central tube, and a raw water inlet, a pure water outlet and a concentrated water outlet of the reverse osmosis membrane filter element are respectively positioned on the inner circumferential surface, the outer circumferential surface and the end surface of the reverse osmosis membrane filter element, so that the pollution resistance of the reverse osmosis membrane filter element is effectively improved, and the service life of the reverse osmosis membrane. In order to satisfy the setting at each mouth of a river of reverse osmosis membrane filter core, will leading filter element group spare set up in the reverse osmosis membrane center tube, be equipped with first water hole of crossing on the reverse osmosis membrane center tube, be used for with leading drainage that leading filter element group spare filters the production leads to reverse osmosis membrane filter core's raw water inlet. The service life is prolonged while the integration level is met.
Description
Technical Field
The invention relates to the technical field of water purification equipment, in particular to a composite filter element and a water purifier.
Background
The reverse osmosis membrane filter element is a filter element for filtering various bacteria, viruses and impurities by utilizing the reverse osmosis principle, and is widely applied to the water purifier based on the better filtering effect. Along with the continuous development of purifier field technique, gradually with the filter core integration at different levels together to reduce the volume of purifier, improve market competition. Reverse osmosis membrane filter core is expensive relatively, need consider the life of filter core at all levels at the in-process that the filter core integrates, consequently need promote reverse osmosis membrane filter core's antipollution to increase of service life.
Disclosure of Invention
The invention provides a composite filter element and a water purifier aiming at the problem of short service life of a filter element with higher integration level, and the technical effect of prolonging the service life can be achieved.
The utility model provides a composite filter element, includes reverse osmosis membrane filter core, reverse osmosis membrane center tube and leading filter element group spare, reverse osmosis membrane filter core set up in outside the reverse osmosis membrane center tube, the raw water inlet, the pure water delivery port and the dense water delivery port of reverse osmosis membrane filter core are located respectively inner peripheral surface, outer peripheral face and the terminal surface of reverse osmosis membrane filter core, leading filter element group spare set up in the reverse osmosis membrane center tube, be equipped with first water hole of crossing on the reverse osmosis membrane center tube, be used for with leading drainage water guide extremely of leading filter element group spare filtration production the raw water inlet of reverse osmosis membrane filter core.
Above-mentioned scheme provides a composite filter core, will reverse osmosis membrane filter core with leading filter core subassembly is integrated together, just reverse osmosis membrane filter core adopts raw water inlet, pure water delivery port and dense water delivery port to be located respectively the form of inner peripheral surface, outer peripheral face and the terminal surface of reverse osmosis membrane filter core to effectively promote reverse osmosis membrane filter core's antipollution, increase of service life. And in order to satisfy the setting at each mouth of a river of reverse osmosis membrane filter core, will leading filter element group spare is integrated in the reverse osmosis membrane center tube set up on the reverse osmosis membrane center tube first water hole of crossing makes leading drainage that leading filter element group spare filters the production can be guided to the raw water inlet of reverse osmosis membrane filter core. The service life is prolonged while the integration level is met.
In one embodiment, the reverse osmosis membrane water purifier further comprises a front filter element pipe, the front filter element pipe is sleeved outside the front filter element assembly, the front filter element pipe is located between the front filter element assembly and the reverse osmosis membrane central pipe, an original water cavity is formed between the front filter element pipe and the front filter element assembly at intervals, a front filter water cavity is formed between the front filter element pipe and the reverse osmosis membrane central pipe at intervals, the water purifying direction of the front filter element assembly is from outside to inside, and a water generating port in the middle of the front filter element assembly is communicated with the front filter water cavity.
In one embodiment, the end face of the front filter element assembly is provided with a front filter element end cover, the front filter element pipe is connected with the front filter element end cover in a sealing mode, a second water passing hole is formed in the front filter element end cover and is communicated with a water producing hole in the middle of the front filter element assembly, one end, close to the front filter element end cover, of the reverse osmosis membrane center pipe is provided with a sealing end cover, the sealing end cover and the front filter element end cover are arranged at intervals to form a first water passing gap, and the first water passing gap is communicated with the second water passing hole and the front filter water cavity.
In one of them embodiment, still include filter flask and rearmounted filter element group spare, reverse osmosis membrane filter core, reverse osmosis membrane center tube, leading filter element group spare and rearmounted filter element group spare all are located in the filter flask, rearmounted filter element group spare with reverse osmosis membrane filter core is in arrange in proper order in the axial of filter flask, reverse osmosis membrane filter core with the interval sets up between the filter flask and forms first pure water clearance, rearmounted filter element group spare with the interval sets up between the filter flask and forms second pure water clearance, first pure water clearance with second pure water clearance intercommunication.
In one embodiment, the reverse osmosis membrane filter comprises a water guide central tube, an intermediate sealing element is arranged between the rear filter element assembly and the reverse osmosis membrane filter element, the end face of the rear filter element assembly is tightly supported on the intermediate sealing element, a third water passing hole is formed in the intermediate sealing element, a fourth water passing hole which is in alignment communication with the third water passing hole is formed in the sealing end cover, the water guide central tube is inserted into the front filter element assembly, one end of the water guide central tube is communicated with a pure water port of the filter bottle, the other end of the water guide central tube penetrates through the second water passing hole and the fourth water passing hole, the water guide central tube is arranged at intervals with the side wall of the second water passing hole, and the water guide central tube is arranged at intervals with the front filter element assembly.
In one of them embodiment, middle seal spare includes sealed dish, a sealed section of thick bamboo and urceolus, sealed dish be used for with the terminal surface of rearmounted filter element group spare supports tightly, third water hole form in on the sealed dish, a sealed section of thick bamboo with face on the sealed dish the end-to-end connection of reverse osmosis membrane filter core, sealed barrel casing is outside the reverse osmosis membrane center tube, a sealed section of thick bamboo with sealing connection between the end cover, the urceolus with the outer peripheral face of sealed dish is connected, urceolus pot head is in the outer peripheral face of reverse osmosis membrane filter core, the other end cover of urceolus is in the outer peripheral face of rearmounted filter.
In one embodiment, the sealing disc is tightly abutted with the end face of the reverse osmosis membrane filter element;
or the sealing disc and the end face of the reverse osmosis membrane filter element are arranged at intervals;
or, the urceolus includes first portion and second part in the axial, the first portion with the second part disconnection, first portion cover is in the outer peripheral face of rearmounted filter core, the first portion with sealed dish is connected, and the second part cover is in the outer peripheral face of reverse osmosis membrane filter core, just keep away from on the sealed section of thick bamboo the one end of sealed dish is equipped with the sealing ring, the inner circle of sealing ring with sealed section of thick bamboo is connected, the outer lane of sealing ring with the second part is connected, the sealing ring with the terminal surface of reverse osmosis membrane filter core supports tightly.
In one embodiment, the middle sealing element comprises a post-filter element end cover, a first connecting cylinder, a reverse osmosis membrane filter element end cover and a second connecting cylinder, the rear filter element end cover is tightly propped against the end surface of the rear filter element component, the third water through hole is formed in the rear filter element end cover, the first connecting cylinder is connected with the end surface of the rear filter element end cover facing the reverse osmosis membrane filter element, the reverse osmosis membrane filter element end cover is tightly propped against the end surface of the reverse osmosis membrane filter element, the second connecting cylinder is connected with the end surface of the reverse osmosis membrane filter element end cover facing the rear filter element assembly, the second connecting cylinder is sleeved outside the first connecting cylinder, the first connecting cylinder is sleeved outside the reverse osmosis membrane central tube, and a sealing element is arranged between the second connecting cylinder and the first connecting cylinder, and a sealing element is arranged between the first connecting cylinder and the reverse osmosis membrane central tube.
In one embodiment, the raw water port and the concentrated water port of the filter bottle and the pure water port are both arranged on the same end surface of the filter bottle, the raw water port is communicated with the raw water cavity, an adapter sleeve is arranged on the end surface, close to the concentrated water port, of the reverse osmosis membrane filter element, the concentrated water outlet is located on the end surface of the reverse osmosis membrane filter element, the concentrated water cavity is formed by the end surface of the reverse osmosis membrane filter element and the adapter sleeve at intervals, and the concentrated water port is communicated with the concentrated water cavity.
In one embodiment, the preposed filter element assembly comprises a first-stage preposed filter element and a second-stage preposed filter element, the first-stage preposed filter element is sleeved outside the second-stage preposed filter element, and the first-stage preposed filter element and the preposed filter element pipe are arranged at intervals to form the raw water cavity.
In one embodiment, the first-stage prepositive filter element comprises a paper folding filter element, the second-stage prepositive filter element comprises a carbon rod filter element, and a water producing port in the middle of the prepositive filter element component comprises a middle through hole of the carbon rod filter element.
A purifier, includes foretell composite filter element.
Above-mentioned scheme provides a purifier, through adopting the composite filter element described in above-mentioned arbitrary embodiment to increase of service life when improving the integrated level.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a composite filter element according to the present embodiment;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic structural diagram of a composite filter element according to another embodiment;
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is a schematic structural diagram of a composite filter element according to yet another embodiment;
fig. 7 is a partial enlarged view of fig. 6 at D.
Description of reference numerals:
10. a composite filter element; 11. a reverse osmosis membrane filter element; 12. a reverse osmosis membrane center tube; 121. a first water through hole; 122. sealing the end cap; 1221. a first water passing gap; 1222. a fourth water through hole; 13. a pre-filter element assembly; 131. a first stage pre-filter element; 132. a second stage pre-filter element; 14. a front filter element pipe; 141. a front filter element end cover; 1411. a second water through hole; 15. a filter flask; 151. a first pure water gap; 152. a second pure water gap; 153. a pure water port; 154. a raw water port; 155. a dense water port; 16. a post-filter element assembly; 17. a water guide central tube; 18. a middle seal member; 181. a third water through hole; 182. sealing the disc; 183. a sealing cylinder; 184. an outer cylinder; 1841. a first portion; 1842. a second portion; 185. a seal ring; 186. a rear filter element end cover; 187. a first connecting cylinder; 188. a reverse osmosis membrane filter element end cover; 189. a second connector barrel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
As shown in fig. 1, 4 and 6, in one embodiment, a composite filter element 10 is provided, which includes a reverse osmosis membrane filter element 11 and a reverse osmosis membrane central tube 12, wherein the reverse osmosis membrane filter element 11 is disposed outside the reverse osmosis membrane central tube 12, and the reverse osmosis membrane central tube 12 provides a support base for the reverse osmosis membrane filter element 11. Specifically, the reverse osmosis membrane filter element 11 may be rolled outside the reverse osmosis membrane central tube 12, in other words, the reverse osmosis membrane filter element 11 is sleeved outside the reverse osmosis membrane central tube 12. The raw water inlet, the pure water outlet and the concentrated water outlet of the reverse osmosis membrane filter element 11 are respectively positioned on the inner circumferential surface, the outer circumferential surface and the end surface of the reverse osmosis membrane filter element 11.
Further, as shown in fig. 1, 4 and 6, the composite filter element 10 further includes a pre-filter element assembly 13, and the pre-filter element assembly 13 is disposed in the reverse osmosis membrane central tube 12. The reverse osmosis membrane central tube 12 is provided with a first water passing hole 121 for guiding the pre-filtered water generated by the filtering of the pre-filter element assembly 13 to the raw water inlet of the reverse osmosis membrane filter element 11.
The composite filter element 10 provided by the scheme is characterized in that the reverse osmosis membrane filter element 11 and the front filter element assembly 13 are integrated together, and the reverse osmosis membrane filter element 11 adopts a raw water inlet, a pure water outlet and a concentrated water outlet which are respectively positioned on the inner peripheral surface, the outer peripheral surface and the end surface of the reverse osmosis membrane filter element 11, so that the pollution resistance of the reverse osmosis membrane filter element 11 is effectively improved, and the service life is prolonged. And in order to meet the requirement of setting each water gap of the reverse osmosis membrane filter element 11, the pre-filter element assembly 13 is integrated in the reverse osmosis membrane central tube 12, and the first water passing hole 121 is arranged on the reverse osmosis membrane central tube 12. So that the pre-filtered water generated by the pre-filter element assembly 13 can be guided to the raw water inlet of the reverse osmosis membrane filter element 11 and enter the reverse osmosis membrane filter element 11 for further filtering. The service life is prolonged while the integration level is met.
Specifically, the pre-filter assembly 13 may include a paper folded filter element and a carbon rod filter element in the paper folded filter element, or the pre-filter assembly 13 may include a PAC (PP cotton plus carbon fiber) filter element, a carbon melt filter element, or the like. When leading filter element group spare 13 includes the paper folding filter core and is arranged in the carbon-point filter core of paper folding filter core, leading filter element group spare 13 rivers direction is by the direction that the periphery flows to the center in the water purification in-process, in other words, the paper folding filter core does leading filter core 131 of the first order of leading filter element group spare 13, the carbon-point filter core does leading filter core 132 of the second grade of leading filter element group spare 13. The water filtered by the first stage pre-filter element 131 enters the second stage pre-filter element 132 again for filtering. When the pre-filter assembly 13 includes the PAC (PP cotton plus carbon fiber) filter, the water flow direction of the pre-filter assembly 13 may not be excessively limited during water purification.
Further, in one embodiment, as shown in fig. 1, 4 and 6, the composite filter element 10 further includes a pre-filter cartridge tube 14. Leading filter element pipe 14 cover is in outside leading filter element subassembly 13, leading filter element pipe 14 is located leading filter element subassembly 13 with between the reverse osmosis membrane center tube 12, leading filter element pipe 14 with former water cavity is formed to the interval between leading filter element subassembly 13. The preposed filter element pipe 14 and the reverse osmosis membrane central pipe 12 form a preposed filter water cavity at intervals. The water purification direction of the front filter element assembly 13 is from outside to inside, and a water producing port in the middle of the front filter element assembly 13 is communicated with the front filter water cavity.
The water entering the composite filter element 10 reaches the raw water cavity first and flows inwards from the periphery of the preposed filter element assembly 13. The pre-filtered water filtered by the pre-filter element assembly 13 flows from the water generating port to the pre-filter water cavity, then flows from the first water passing hole 121 to the raw water inlet of the reverse osmosis membrane filter element 11, and enters the reverse osmosis membrane filter element 11 for further filtering.
Specifically, in one embodiment, as shown in fig. 1, 4 and 6, the pre-filter cartridge assembly 13 includes a first stage pre-filter cartridge 131 and a second stage pre-filter cartridge 132, the first stage pre-filter cartridge 131 being nested outside the second stage pre-filter cartridge 132. The first stage pre-filter element 131 and the pre-filter element pipe 14 are arranged at intervals to form the raw water cavity.
When the leading filter core 131 of first order is the paper folding filter core, the leading filter core 132 of second level is during the carbon-point filter core, the paper folding filter core with interval sets up between the leading filter core pipe 14, forms former water cavity. The water producing port in the middle of the front filter element component 13 comprises a middle through hole of the carbon rod filter element.
Further, in one embodiment, as shown in fig. 1, 3 to 7, the end face of the front filter element assembly 13 is provided with a front filter element end cover 141, and the front filter element pipe 14 is connected with the front filter element end cover 141 in a sealing manner. And a second water passing hole 1411 is formed in the front filter element end cover 141, and the second water passing hole 1411 is communicated with a water producing port in the middle of the front filter element assembly 13. So that the water flowing out from the water producing port in the front filter element assembly 13 flows out of the front filter element end cover 141 from the second water through hole 1411.
Specifically, when the front filter element assembly 13 includes the paper folding filter element and the carbon rod filter element, the second water passing hole 1411 is communicated with the middle through hole of the carbon rod filter element. As shown in fig. 3, 5 and 7, the second water through hole 1411 is located on the front filter element end cover 141 at a position corresponding to the middle through hole of the carbon rod filter element.
Further, as shown in fig. 3, fig. 5 and fig. 7, the front filter element end cap 141 abuts against and seals the end surface of the front filter element assembly 13, so that water immersed in the raw water chamber can only flow through the first-stage front filter element 131 and the second-stage front filter element 132 from outside to inside in sequence and then flows out of the front filter element end cap 141 from the second water flowing hole 1411.
Further, as shown in fig. 1 and fig. 3 to fig. 7, a seal end cover 122 is provided at one end of the reverse osmosis membrane central tube 12 close to the front filter element end cover 141, the seal end cover 122 and the front filter element end cover 141 are arranged at an interval to form a first water gap 1221, and the first water gap 1221 communicates the second water passing hole 1411 with the front filter water cavity. So that the water filtered by the pre-filter element assembly 13 can smoothly reach the pre-filter water cavity.
Further, in one embodiment, as shown in fig. 1, 4 and 6, the composite filter element 10 further comprises a filter flask 15 and a post-filter element assembly 16, and the reverse osmosis membrane filter element 11, the reverse osmosis membrane central tube 12, the pre-filter element assembly 13 and the post-filter element assembly 16 are all located in the filter flask 15. The post-positioned filter element component 16 and the reverse osmosis membrane filter element 11 are sequentially arranged in the axial direction of the filter flask 15. The reverse osmosis membrane filter core 11 with the interval sets up and forms first pure water clearance 151 between the filter flask 15, rearmounted filter element subassembly 16 with the interval sets up and forms second pure water clearance 152 between the filter flask 15, first pure water clearance 151 with second pure water clearance 152 intercommunication.
The water that gets into in the composite filter element 10 passes through in proper order leading filter element group spare 13 with reverse osmosis membrane filter element 11 filters the back, follows reverse osmosis membrane filter element 11's pure water delivery port exhaust pure water reaches first pure water clearance 151 at first, then gets into second pure water clearance 152, later pass through rearmounted filter element group spare 16 further filters. The post-filter element assembly 16 may be formed of a carbon rod composite ultrafiltration membrane.
Specifically, as shown in fig. 1 and 3 to 7, in one embodiment, an intermediate sealing member 18 is disposed between the post-filter cartridge assembly 16 and the reverse osmosis membrane filter cartridge 11, and a gap is formed between the intermediate sealing member 18 and the filter bottle 15, so that the first pure water gap 151 communicates with the second pure water gap 152.
Further, in an embodiment, as shown in fig. 3, 5 and 7, an intermediate sealing member 18 is disposed between the post-filter element assembly 16 and the reverse osmosis membrane filter element 11, an end surface of the post-filter element assembly 16 abuts against the intermediate sealing member 18, and water entering the second pure water gap 152 can only pass through the post-filter element assembly 16 from the outside to the inside for filtering.
A third water through hole 181 is formed in the middle sealing element 18, and a fourth water through hole 1222 aligned and communicated with the third water through hole 181 is formed in the sealing end cover 122. The water entering the fourth water passing hole 1222 comes from the third water passing hole 181, in other words, the water filtered by the rear filter element assembly 16 flows from the third water passing hole 181 to the fourth water passing hole 1222. Specifically, the sealing end cap 122 may abut against the middle sealing member 18, so that the fourth water through hole 1222 is communicated with the third water through hole 181.
As shown in fig. 1, 4 and 6, the composite filter element 10 further includes a water guide center tube 17. The water guide central pipe 17 is inserted in the front filter element assembly 13, one end of the water guide central pipe 17 is communicated with the pure water port 153 of the filter flask 15, and the other end of the water guide central pipe 17 passes through the second water through hole 1411 to be communicated with the fourth water through hole 1222. The water filtered by the post-filter element assembly 16 finally flows from the water guide central pipe 17 to the pure water port 153 of the filter flask 15, and is discharged out of the composite filter element 10 for users to use.
Further, as shown in fig. 2, the water guiding center pipe 17 is arranged at a distance from the side wall of the second water through hole 1411, and the water guiding center pipe 17 is arranged at a distance from the front filter element assembly 13. The prefiltered water filtered by the prefilter assembly 13 reaches a gap between the water guide center pipe 17 and the prefilter assembly 13, and then flows from the gap between the water guide center pipe 17 and the side wall of the second water passing hole 1411 to the first water passing gap 1221.
Specifically, in one embodiment, the water guide center pipe 17 is inserted into a carbon rod filter element included in the front filter element assembly 13, and the water guide center pipe 17 is arranged at a distance from the side wall of the middle through hole of the carbon rod filter element.
Further, in one embodiment, as shown in fig. 3 and 5, the mid-seal 18 includes a sealing disk 182, a sealing barrel 183, and an outer barrel 184. The sealing disc 182 is used for abutting against the end face of the rear filter element assembly 16, and the third water passing hole 181 is formed in the sealing disc 182. The sealing cylinder 183 is connected to the end surface of the sealing disc 182 facing the reverse osmosis membrane filter element 11, the sealing cylinder 183 is sleeved outside the reverse osmosis membrane central tube 12, and the sealing cylinder 183 is connected to the sealing end cover 122 in a sealing manner, so that water flowing out of the third water through hole 181 can only flow to the fourth water through hole 1222 in the sealing end cover 122 and then enter the water guide central tube 17.
The outer cylinder 184 is connected with the peripheral surface of the sealing disc 182, one end of the outer cylinder 184 is sleeved on the peripheral surface of the reverse osmosis membrane filter element 11, and the other end of the outer cylinder 184 is sleeved on the peripheral surface of the rear filter element. On the one hand, the outer cylinder 184 plays a role in limiting and protecting the outer peripheral surface of the end of the reverse osmosis membrane filter element 11, and on the other hand, the outer cylinder 184 seals the end surface of the reverse osmosis membrane filter element 11, so that the concentrated water is prevented from flowing to the second pure water gap 152. The water flow in the composite filter element 10 is ensured to sequentially pass through the preposed filter element assembly 13, the reverse osmosis membrane filter element 11 and the postposition filter element assembly 16 according to the flowing direction. The outer cylinder 184 and the outer circumferential surface of the reverse osmosis membrane filter element 11 may be sealed by bonding with glue or tape.
More specifically, in one embodiment, as shown in FIG. 3, the seal disk 182 is spaced from the end face of the reverse osmosis membrane cartridge 11.
Or, the sealing disc 182 is tightly abutted against the end face of the reverse osmosis membrane filter element 11. Reduce the storage space of reverse osmosis membrane filter core 11 terminal surface, reduce the storage to dense water.
Further, as shown in fig. 5, in another embodiment, the outer barrel 184 includes a first portion 1841 and a second portion 1842 in the axial direction, the first portion 1841 is disconnected from the second portion 1842, the first portion 1841 is sleeved on the outer circumferential surface of the rear filter element, the first portion 1841 is connected with the sealing disk 182, and the second portion 1842 is sleeved on the outer circumferential surface of the reverse osmosis membrane filter element 11. And one end of the sealing cylinder 183, which is far away from the sealing disc 182, is provided with a sealing ring 185, the inner ring of the sealing ring 185 is connected with the sealing cylinder 183, and the outer ring of the sealing ring 185 is connected with the second part 1842. The sealing ring 185 is tightly abutted against the end face of the reverse osmosis membrane filter element 11.
Alternatively, in yet another embodiment, as shown in fig. 7, the mid seal member 18 includes a post cartridge endcap 186, a first connector barrel 187, a reverse osmosis membrane cartridge endcap 188, and a second connector barrel 189. The rear filter element end cover 186 is tightly abutted against the end face of the rear filter element assembly 16, the third water passing hole 181 is formed in the rear filter element end cover 186, and the first connecting cylinder 187 is connected with the end face, facing the reverse osmosis membrane filter element 11, of the rear filter element end cover 186. The reverse osmosis membrane filter element end cover 188 is tightly abutted against the end face of the reverse osmosis membrane filter element 11, and the second connecting cylinder 189 is connected with the end face, facing the rear filter element assembly 16, of the reverse osmosis membrane filter element end cover 188. The second connecting cylinder 189 is sleeved outside the first connecting cylinder 187, the first connecting cylinder 187 is sleeved outside the reverse osmosis membrane central tube 12, a sealing element is arranged between the second connecting cylinder 189 and the first connecting cylinder 187, and a sealing element is arranged between the first connecting cylinder 187 and the reverse osmosis membrane central tube 12.
A sealing member between the first connecting cylinder 187 and the reverse osmosis membrane central tube 12 can ensure that the water of the third water through hole 181 flows into the water guide central tube 17. A sealing member is arranged between the second connecting cylinder 189 and the first connecting cylinder 187, so that all water flowing out of the central tube 12 of the reverse osmosis membrane from the first water passing hole 121 can be filtered by the reverse osmosis membrane filter element 11.
Further, as shown in fig. 1, 4 and 6, in one embodiment, the raw water port 154 and the concentrate port 155 of the filter flask 15 are both disposed on the same end surface of the filter flask 15 as the pure water port 153. Former mouth of a river 154 with former water cavity intercommunication, be close to on the reverse osmosis membrane filter core 11 the terminal surface of dense mouth of a river 155 is equipped with the switching cover, the dense water delivery port is located this terminal surface of reverse osmosis membrane filter core 11, the terminal surface of reverse osmosis membrane filter core 11 with the interval sets up between the switching cover and forms the dense water cavity, dense mouth of a river 155 with dense water cavity intercommunication.
Pure water obtained by water production through the composite filter element 10 flows out of the pure water port 153, concentrated water flows out of the concentrated water port 155, and raw water enters the composite filter element 10 through the raw water port 154.
Further, in another embodiment, a water purifier is provided, which includes the composite filter element 10.
According to the water purifier provided by the scheme, the composite filter element 10 in any one of the embodiments is adopted, so that the integration level is improved, and the service life is prolonged.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. The utility model provides a composite filter element, its characterized in that, includes reverse osmosis membrane filter core, reverse osmosis membrane center tube and leading filter element group spare, reverse osmosis membrane filter core set up in outside the reverse osmosis membrane center tube, the raw water inlet, the pure water delivery port and the dense water delivery port of reverse osmosis membrane filter core are located respectively inner peripheral surface, outer peripheral face and the terminal surface of reverse osmosis membrane filter core, leading filter element group spare set up in the reverse osmosis membrane center tube, be equipped with first water hole of crossing on the reverse osmosis membrane center tube, be used for with leading drainage that leading filter element group spare filters the production leads to the raw water inlet of reverse osmosis membrane filter.
2. The composite filter element according to claim 1, further comprising a pre-filter element pipe, wherein the pre-filter element pipe is sleeved outside the pre-filter element assembly, the pre-filter element pipe is located between the pre-filter element assembly and the reverse osmosis membrane center pipe, a raw water cavity is formed between the pre-filter element pipe and the pre-filter element assembly at an interval, a pre-filter water cavity is formed between the pre-filter element pipe and the reverse osmosis membrane center pipe at an interval, the water purifying direction of the pre-filter element assembly is from outside to inside, and a water generating port in the middle of the pre-filter element assembly is communicated with the pre-filter water cavity.
3. The composite filter element according to claim 2, wherein a front filter element end cover is arranged on the end face of the front filter element assembly, the front filter element pipe is connected with the front filter element end cover in a sealing manner, a second water passing hole is arranged on the front filter element end cover and is communicated with a water producing port in the middle of the front filter element assembly, a sealing end cover is arranged at one end of the reverse osmosis membrane center pipe close to the front filter element end cover, a first water passing gap is formed between the sealing end cover and the front filter element end cover at an interval, and the first water passing gap is communicated with the second water passing hole and the front filter water cavity.
4. The composite filter element of claim 3, further comprising a filter flask and a rear filter element assembly, wherein the reverse osmosis membrane filter element, the reverse osmosis membrane central tube, the front filter element assembly and the rear filter element assembly are all located in the filter flask, the rear filter element assembly and the reverse osmosis membrane filter element are sequentially arranged in the axial direction of the filter flask, the reverse osmosis membrane filter element and the filter flask are arranged at intervals to form a first pure water gap, the rear filter element assembly and the filter flask are arranged at intervals to form a second pure water gap, and the first pure water gap is communicated with the second pure water gap.
5. The composite filter element according to claim 4, further comprising a water guide central tube, wherein an intermediate sealing member is arranged between the rear filter element assembly and the reverse osmosis membrane filter element, the end surface of the rear filter element assembly is abutted against the intermediate sealing member, a third water through hole is formed in the intermediate sealing member, a fourth water through hole which is in alignment communication with the third water through hole is formed in the sealing end cover, the water guide central tube is inserted into the front filter element assembly, one end of the water guide central tube is communicated with the pure water port of the filter flask, the other end of the water guide central tube penetrates through the second water through hole and is communicated with the fourth water through hole, the water guide central tube and the side wall of the second water through hole are arranged at intervals, and the water guide central tube and the front filter element assembly are arranged at intervals.
6. The composite filter element of claim 5, wherein the middle sealing element comprises a sealing disc, a sealing barrel and an outer barrel, the sealing disc is used for abutting against the end face of the rear filter element assembly, the third water hole is formed in the sealing disc, the sealing barrel is connected with the end face of the reverse osmosis membrane filter element in a facing mode on the sealing disc, the sealing barrel is sleeved outside the reverse osmosis membrane center tube, the sealing barrel is connected with the sealing end covers in a sealing mode, the outer barrel is connected with the outer peripheral face of the sealing disc, one end of the outer barrel is sleeved on the outer peripheral face of the reverse osmosis membrane filter element, and the other end of the outer barrel is sleeved on the outer peripheral face of the rear filter element.
7. The composite filter element of claim 6, wherein the sealing disk abuts against an end face of the reverse osmosis membrane filter element;
or the sealing disc and the end face of the reverse osmosis membrane filter element are arranged at intervals;
or, the urceolus includes first portion and second part in the axial, the first portion with the second part disconnection, first portion cover is in the outer peripheral face of rearmounted filter core, the first portion with sealed dish is connected, and the second part cover is in the outer peripheral face of reverse osmosis membrane filter core, just keep away from on the sealed section of thick bamboo the one end of sealed dish is equipped with the sealing ring, the inner circle of sealing ring with sealed section of thick bamboo is connected, the outer lane of sealing ring with the second part is connected, the sealing ring with the terminal surface of reverse osmosis membrane filter core supports tightly.
8. The composite filter element of claim 5, wherein the middle sealing element comprises a rear filter element end cover, a first connecting cylinder, a reverse osmosis membrane filter element end cover and a second connecting cylinder, the rear filter element end cover abuts against the end surface of the rear filter element assembly, the third water passing hole is formed in the rear filter element end cover, the first connecting cylinder is connected with the end surface of the rear filter element end cover facing the reverse osmosis membrane filter element, the reverse osmosis membrane filter element end cover abuts against the end surface of the reverse osmosis membrane filter element, the second connecting cylinder is connected with the end surface of the reverse osmosis membrane filter element end cover facing the rear filter element assembly, the second connecting cylinder is sleeved outside the first connecting cylinder, the first connecting cylinder is sleeved outside the reverse osmosis membrane central tube, and a sealing element is arranged between the second connecting cylinder and the first connecting cylinder, and a sealing element is arranged between the first connecting cylinder and the reverse osmosis membrane central tube.
9. The composite filter element according to claim 5, wherein a raw water port and a concentrated water port of the filter flask are both arranged on the same end surface of the filter flask as the pure water port, the raw water port is communicated with the raw water chamber, an adapter sleeve is arranged on the end surface of the reverse osmosis membrane filter element close to the concentrated water port, the concentrated water outlet is positioned on the end surface of the reverse osmosis membrane filter element, a concentrated water chamber is formed between the end surface of the reverse osmosis membrane filter element and the adapter sleeve at an interval, and the concentrated water port is communicated with the concentrated water chamber.
10. The composite filter element of any one of claims 2 to 9, wherein the pre-filter element assembly comprises a first stage pre-filter element and a second stage pre-filter element, the first stage pre-filter element is sleeved outside the second stage pre-filter element, and the first stage pre-filter element and the pre-filter element pipe are arranged at intervals to form the raw water cavity.
11. The composite filter element of claim 10, wherein the first stage pre-filter element comprises a paper folded filter element, the second stage pre-filter element comprises a carbon rod filter element, and the water production port in the middle of the pre-filter element assembly comprises a middle through hole of the carbon rod filter element.
12. A water purification machine, characterized in that it comprises a composite filter element according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011095685.4A CN112125425A (en) | 2020-10-14 | 2020-10-14 | Composite filter element and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011095685.4A CN112125425A (en) | 2020-10-14 | 2020-10-14 | Composite filter element and water purifier |
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| Publication Number | Publication Date |
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| CN112125425A true CN112125425A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011095685.4A Pending CN112125425A (en) | 2020-10-14 | 2020-10-14 | Composite filter element and water purifier |
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| CN (1) | CN112125425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114159882A (en) * | 2021-06-03 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Leading filter core of composite filter core and composite filter core that has it |
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